Dominant male I have is close to 24" and my original female is about 20" (male is about double the size of the female's girth). I have seen the prospective 3rd bichir and it's around 14-16" likely male and slim (half girth as my female). I'm still working out something with the seller and have an available 6x2.5x2ft tank ready in case something goes wrong. Hopefully the trio - MMF works well as it's hard to get an ornate in OZ. I'm not into breeding and just happy to see them swimming around, but if I have a breeding dance (previous owner of the dominant male was able to breed these before losing her female) that will be a plus factor for me. Moneywise, a bit of saving up as they are not cheap.